I'm pretty sure it does - could just be a case of the UI not updating? The Boomtatsic playlist in Portal was perfect for most of those weeklies
it counts a shoulder launcher but unfortunately not every vehicle assists counting into the mission.
It is easier to directly target enemy players instead of vehicles.
Then the mission details should be clear. I shot down choppers with the AA missile and that didn't count either.
I finally completed it, but this was the worst challenge yet. To me there are three weapons that meet the criteria, but only one of them seemed to actually work.
